1/*	$OpenBSD: pthread_cond_timedwait.c,v 1.7 2013/12/21 05:39:21 guenther Exp $	*/
2/*
3 * Copyright (c) 1993, 1994, 1995, 1996 by Chris Provenzano and contributors,
4 * proven@mit.edu All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 *    must display the following acknowledgement:
16 *	This product includes software developed by Chris Provenzano,
17 *	the University of California, Berkeley, and contributors.
18 * 4. Neither the name of Chris Provenzano, the University, nor the names of
19 *   contributors may be used to endorse or promote products derived
20 *   from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL CHRIS PROVENZANO, THE REGENTS OR
26 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
27 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
28 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
29 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
31 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
32 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35/* ==== test_pthread_cond.c =========================================
36 * Copyright (c) 1993 by Chris Provenzano, proven@athena.mit.edu
37 *
38 * Description : Test pthread_cond(). Run this after test_create()
39 *
40 *  1.23 94/05/04 proven
41 *      -Started coding this file.
42 */
43
44#include <pthread.h>
45#include <stdio.h>
46#include <errno.h>
47#include <unistd.h>
48#include <stdlib.h>
49#include "test.h"
50
51pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
52pthread_cond_t cond;
53
54static void *
55thread_1(void * new_buf)
56{
57	CHECKr(pthread_mutex_lock(&mutex));
58	CHECKr(pthread_cond_signal(&cond));
59	CHECKr(pthread_mutex_unlock(&mutex));
60	pthread_exit(NULL);
61}
62
63static void *
64thread_2(void * new_buf)
65{
66	sleep(1);
67	CHECKr(pthread_mutex_lock(&mutex));
68	CHECKr(pthread_cond_signal(&cond));
69	CHECKr(pthread_mutex_unlock(&mutex));
70	pthread_exit(NULL);
71}
72
73int
74main(int argc, char *argv[])
75{
76	struct timespec abstime;
77	struct timespec begtime;
78	struct timespec endtime;
79	pthread_t thread;
80	pthread_condattr_t condattr;
81	int ret;
82	int ix;
83
84	printf("pthread_cond_timedwait START\n");
85
86	CHECKr(pthread_condattr_init(&condattr));
87	CHECKr(pthread_condattr_setclock(&condattr, CLOCK_MONOTONIC));
88	CHECKr(pthread_cond_init(&cond, &condattr));
89
90	CHECKr(pthread_mutex_lock(&mutex));
91	CHECKe(clock_gettime(CLOCK_MONOTONIC, &begtime));
92	abstime = begtime;
93
94	for (ix = 0; ix < 2; ix++) {
95		abstime.tv_sec += 5;
96
97		/* Test a condition timeout */
98		switch((ret = pthread_cond_timedwait(&cond, &mutex, &abstime))) {
99		case 0:
100			PANIC("pthread_cond_timedwait #0 failed to timeout");
101			/* NOTREACHED */
102		case ETIMEDOUT:
103			/* expected behaviour */
104			CHECKe(clock_gettime(CLOCK_MONOTONIC, &endtime));
105			timespecsub(&endtime, &begtime, &endtime);
106			printf("Got timeout %d in %lld.%09ld seconds\n", ix,
107			       (long long)endtime.tv_sec, endtime.tv_nsec);
108			break;
109		default:
110			DIE(ret, "pthread_cond_timedwait");
111			/* NOTREACHED */
112		}
113	}
114
115	/* Test a normal condition signal */
116	CHECKr(pthread_create(&thread, NULL, thread_1, NULL));
117
118	abstime.tv_sec += 5;
119	CHECKr(pthread_cond_timedwait(&cond, &mutex, &abstime));
120
121	/* Test a normal condition signal after a sleep */
122	CHECKr(pthread_create(&thread, NULL, thread_2, NULL));
123
124	pthread_yield();
125
126	CHECKr(pthread_cond_timedwait(&cond, &mutex, &abstime));
127
128	SUCCEED;
129}
130